Effects of carbon microalloying on microstructure and mechanical properties of low-cost Ti-4.5Al-3.5Zr-2Fe titanium alloy

Wang Andong; Wang Zhitian; Xiang Zhilei; Han Jingyu; Zhou Zongyi; Shen Gaoliang; Huang Jingcun; Chen Ziyong

doi:10.7513/j.issn.1004-7638.2022.06.011

Volume 43 Issue 6

Jan. 2023

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Wang Andong, Wang Zhitian, Xiang Zhilei, Han Jingyu, Zhou Zongyi, Shen Gaoliang, Huang Jingcun, Chen Ziyong. Effects of carbon microalloying on microstructure and mechanical properties of low-cost Ti-4.5Al-3.5Zr-2Fe titanium alloy[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(6): 71-77. doi: 10.7513/j.issn.1004-7638.2022.06.011

Citation:

Wang Andong, Wang Zhitian, Xiang Zhilei, Han Jingyu, Zhou Zongyi, Shen Gaoliang, Huang Jingcun, Chen Ziyong. Effects of carbon microalloying on microstructure and mechanical properties of low-cost Ti-4.5Al-3.5Zr-2Fe titanium alloy[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(6): 71-77. doi: 10.7513/j.issn.1004-7638.2022.06.011

Citation:

Wang Andong, Wang Zhitian, Xiang Zhilei, Han Jingyu, Zhou Zongyi, Shen Gaoliang, Huang Jingcun, Chen Ziyong. Effects of carbon microalloying on microstructure and mechanical properties of low-cost Ti-4.5Al-3.5Zr-2Fe titanium alloy[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(6): 71-77. doi: 10.7513/j.issn.1004-7638.2022.06.011

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Effects of carbon microalloying on microstructure and mechanical properties of low-cost Ti-4.5Al-3.5Zr-2Fe titanium alloy

doi: 10.7513/j.issn.1004-7638.2022.06.011

Department of Materials and Manufacturing, Beijing University of Technology , Beijing 100124, China

Received Date: 2022-05-04
Publish Date: 2023-01-13

Abstract

Abstract

Low-cost Ti-4.5Al-3.5Zr-2Fe titanium alloys with different carbon content of 0, 0.1%, 0.15% and 0.3% were prepared in a water-cooled copper crucible vacuum induction levitation melting furnace. The effects of carbon microalloying on the as-cast microstructure and mechanical properties of the titanium alloys were investigated. The results show that with the introduction of carbon element, the original β grain and α lamellar width are refined to a certain extent, and the as-cast solidification microstructure of the alloy is gradually transformed from Widmanstätten microstructure to basket-weave microstructure, and TiC precipitates at grain boundary. Ti-4.5Al-3.5Zr-2Fe-0.1C alloy has the best comprehensive mechanical properties, with a tensile strength and yield strength of 979 MPa and 920 MPa, respectively, and an elongation of 5.4%.
- low-cost titanium alloy,
- carbon microalloying,
- as-cast structure,
- mechanical properties

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References(12)

References

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